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  • Lessons and Guides for Uiflow

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    E

    Hello everyone,
    Iā€™m facing a problem that I havenā€™t been able to solve.
    I have connected four servo motors to pins G19, G25, G26, and G27 of the Core2, and using UIFlow1 I can correctly control the servosā€™ movements.

    Now, I need to establish USB communication between my PC and the Core2. Essentially, I would like to run a Python script on my PC that sends an angle to the Core2 so it can command the motors to reach that desired value. I want to understand whether the USB cable connecting the Core2 to the PC is sufficient (Iā€™ve asked on chat.m5stack.com and it should be possible according to AI response).

    Iā€™ve tried many approaches, all unsuccessful. Here are the two main ones:

    Attempt 1: In UIFlow1 I used the Hardware -> UART blocks, defining both uart1 = machine.UART(1, tx=32, rx=33) and uart2 = machine.UART(2, tx=17, rx=16). In both cases, I cannot read anything (uart1.any() / uart2.any() return nothing).

    Attempt 2: I flashed the UIFlow2 firmware, but I cannot find blocks for serial communication.

    It seems I could also bypass UIFlow entirely and program everything in VS Code using the Python and Pymakr extensions, but I would like to know if this is the only way before going that way.

    Thanks a lot for your support!
    Eleonora

  • 209
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    786
    Posts

    kurikoK

    Hi @felmue @Physalice
    This issue seems to be related to any unit with a screen. Anyway, we have fixed it!

  • 11
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    33
    Posts

    A

    @jeanfabre
    On web, just choice block type.
    86b7a25c93207d9a32e5b33471bb1f0.png

    For code, add return description like this:
    def func(self) -> int:
    return 0

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